Re: [Emc-users] Home switches for LinuxCNC on a Lathe

On Sun, 11 Dec 2022 at 17:41, John Dammeyer wrote: Thanks for the photos. Novel concept. Not entirely, I think that RotarySMPs Schaublin has magnets buried in the bed to be detected by hall sensors. (though magnets do have obvious problems with swarf) -- atp "A motorcycle is a bicycle with

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

> From: andy pugh [mailto:bodge...@gmail.com] > > On Thu, 8 Dec 2022 at 20:36, John Dammeyer wrote: > > The X axis is interesting in how it's set up. The switches appear to be in > > series with the NO switch on the X all the way out point and the NC switch > > at the X all the way in point.

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

On Thu, 8 Dec 2022 at 20:36, John Dammeyer wrote: The X axis is interesting in how it's set up. The switches appear to be in > series with the NO switch on the X all the way out point and the NC switch > at the X all the way in point. The rod moves and opens the circuit at > either end. Very

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

Hi Leonardo, > > Just to clarify because sometimes it confuses me too. And please someone > correct me if I'm wrong: > > Positive and negative soft limits are always with respect to the 0 home > position. No matter where the home switch is located or if that 0 position > is aligned with the

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

omorrow I'll add tool table support to the program and > post some more pictures. > > John > > > > -Original Message- > > From: John Dammeyer [mailto:jo...@autoartisans.com] > > Sent: December-07-22 11:32 PM > > To: 'Enhanced Machine Controller (EMC)' > &g

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

gt; -Original Message- > From: John Dammeyer [mailto:jo...@autoartisans.com] > Sent: December-07-22 11:32 PM > To: 'Enhanced Machine Controller (EMC)' > Subject: Re: [Emc-users] Home switches for LinuxCNC on a Lathe > > I've done a bit more work on this. I've

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

On Thu, 8 Dec 2022 at 07:37, John Dammeyer wrote: > I've done a bit more work on this. I've made an assumption that the home > switch is about 5" from the theoretical lathe centerline with a specific > tool inserted in a fixed holder. > I don't think that you need to worry about the machine

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

It looks ok to me. But my recommendation is to forget about the distance between the home switch and the centerline. For example when I retrofitted the Mazak, I wired all the limits and home switches and when I was sure the hard limits worked I started playing around with the homing setup.

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

I've done a bit more work on this. I've made an assumption that the home switch is about 5" from the theoretical lathe centerline with a specific tool inserted in a fixed holder. I home the cross slide setting 0.000 into the world coordinates G53 location. Then move it -4.0" inwards which

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

I did something similar on a BP sized mill. Manually move x and y to roughly center the beam of a laser diode in a 3 mm hole in a tab at one end of the mill. Kick off homing for x and y and it will pick up the first index on each axis. You can then move from there to where your preferred zero

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

> > +100, I have plumbing running across the bed on the right edge of the > carriage, feeding all the stuff on the apron, and I've crushed it > against the tailstock base several times. One of the additional bits of > gingerbread I need to get done. Done that to oil cans :) El dom, 4 dic 2022 a

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

On 12/4/22 15:43, John Dammeyer wrote: From: andy pugh [mailto:bodge...@gmail.com] On Sun, 4 Dec 2022 at 00:32, John Dammeyer wrote: The Z axis is more interesting. Before homing I imagine the tail stock has to be loosened and moved all the way to the right as far away from the headstock to

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

> From: andy pugh [mailto:bodge...@gmail.com] > On Sun, 4 Dec 2022 at 00:32, John Dammeyer wrote: > > > > > The Z axis is more interesting. Before homing I imagine the tail stock > > has to be loosened and moved all the way to the right as far away from the > > headstock to ensure finding a

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

On Sun, 4 Dec 2022 at 00:32, John Dammeyer wrote: > > The Z axis is more interesting. Before homing I imagine the tail stock > has to be loosened and moved all the way to the right as far away from the > headstock to ensure finding a home switch. > My lathe uses a position.txt file hack and

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

onardo Marsaglia [mailto:ldmarsag...@gmail.com] > Sent: December-04-22 8:32 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Home switches for LinuxCNC on a Lathe > > > > > I'm guessing you are suggesting something like what Gene was that the ho

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

Interesting. Don't need switches for that but do need an index on the leadscrew. > -Original Message- > From: Stuart Stevenson [mailto:stus...@gmail.com] > Sent: December-04-22 5:26 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Home switch

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

> > I'm guessing you are suggesting something like what Gene was that the home > switch isn't at the end of travel but somewhere else and once activated > never goes inactive in that same direction. So if you start a home > sequence and the switch is ON you know you have to go to the right until

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

You might try the FADAL mill method. They use two arrows (markers). One on the moving member and one on the unmoving member. You physically align the arrows and run the home routine. The next found index mark on the encoder is the home position. regards Stuart On Sun, Dec 4, 2022 at 1:25 AM

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

On 12/3/22 22:56, John Dammeyer wrote: From what I understand you're talking about a normal parallel lathe so here are my thoughts: Yes. And thank you. The Z axis is more interesting. Before homing I imagine the tail stock has to be loosened and moved all the way to the right as far away

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

> > From what I understand you're talking about a normal parallel lathe so here > are my thoughts: Yes. And thank you. > > > The Z axis is more interesting. Before homing I imagine the tail stock > > has to be loosened and moved all the way to the right as far away from the > > headstock to

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

On 12/3/22 19:27, John Dammeyer wrote: What with playing around with my new tool setter and trying to decide where to put it I've come up with another set of questions which I've not really asked but now has been bugging me for a while. Home switches for a LinuxCNC controlled lathe. For

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

I forgot to clarify. Usually you don't touch off for X coordinate in G54 because your centerline is always the center of rotation of the chuck. So basically you only use Z axis touch off for different part lengths. And the only time you need to find the centerline is whenever you mount a drill

Re: [Emc-users] Home switches for LinuxCNC on a Lathe

Hi John, From what I understand you're talking about a normal parallel lathe so here are my thoughts: > The Z axis is more interesting. Before homing I imagine the tail stock > has to be loosened and moved all the way to the right as far away from the > headstock to ensure finding a home

[Emc-users] Home switches for LinuxCNC on a Lathe

What with playing around with my new tool setter and trying to decide where to put it I've come up with another set of questions which I've not really asked but now has been bugging me for a while. Home switches for a LinuxCNC controlled lathe. For the X axis I can see this as pretty simple

Re: [Emc-users] Home switches.

On 05/24/2018 10:04 PM, John Dammeyer wrote: Quick mini survey. If you have a knee mill, where have you mounted your home switches? I understand it doesn't matter because the machine coordinate system is only used to establish a fixed reference. For the rest of the time we use various world

Re: [Emc-users] Home switches.

Table toward you and to the left is machine home. 4th axis on the right hand side of the table. This is how most machines are. Sent from my iPhone > On May 25, 2018, at 1:26 AM, Marcus Bowman > wrote: > > >> >> And that brings up the third question about

Re: [Emc-users] Home switches.

> > And that brings up the third question about a 4th axis. If you have one, do > you tend to put it on the left just like a lathe spindle or on the right? > Any reason for the preference? Often there are tool changers on the left so > it makes more sense to have the 4th on the right. My mill

Re: [Emc-users] Home switches.

On Thursday 24 May 2018 23:04:06 John Dammeyer wrote: > Quick mini survey. If you have a knee mill, where have you mounted > your home switches? > I understand it doesn't matter because the machine coordinate system > is only used to establish a fixed reference. For the rest of the time > we

Re: [Emc-users] Home switches.

Home switches should go to the positive side , z up, y towards you and x on the right. Most 4 axis I have used were mounted on the negative end ( left ) ( mazak) but the carousel was not in the path of the 4th axis, the fadals ( which homed to the center of the table , as well as the daewoo) were

[Emc-users] Home switches.

Quick mini survey. If you have a knee mill, where have you mounted your home switches? I understand it doesn't matter because the machine coordinate system is only used to establish a fixed reference. For the rest of the time we use various world coordinate systems with the G54... So the

[Emc-users] Home Switches

I am trying to setup a new machine with EMC2 and Axis using home switches. Everything seems to be working fine, except that z sets itself to 8.5202 after homing. Even though I have: HOME = 0.0 HOME_OFFSET = 0.00 Where is it pulling this 8.5202? I can find no reference to any number like

Re: [Emc-users] Home Switches

Subject: [Emc-users] Home Switches I am trying to setup a new machine with EMC2 and Axis using home switches. Everything seems to be working fine, except that z sets itself to 8.5202 after homing. Even though I have: HOME = 0.0 HOME_OFFSET = 0.00 Where is it pulling this 8.5202? I can find

Re: [Emc-users] Home Switches

On Fri, 2008-11-07 at 11:17 -0600, Len Shelton wrote: I am trying to setup a new machine with EMC2 and Axis using home switches. Everything seems to be working fine, except that z sets itself to 8.5202 after homing. Even though I have: HOME = 0.0 HOME_OFFSET = 0.00 Where is it

Re: [Emc-users] Home Switches

Thanks. That worked. Any idea how it got set? This is a brand new install and I am not at all new to EMC2. Len -Original Message- From: Chris Radek [mailto:[EMAIL PROTECTED] Sent: Friday, November 07, 2008 11:51 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Home

Re: [Emc-users] Home Switches

On Fri, Nov 07, 2008 at 12:10:33PM -0600, Len Shelton wrote: Thanks. That worked. Any idea how it got set? This is a brand new install and I am not at all new to EMC2. Depends - you don't say which kind of offset it turns out it was. If it was G54, you set it with touch off or G10 L2 P1 Z...

Re: [Emc-users] Home Switches

Here's the page I always refer to when emc's DRO shows something different than what I expect: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?CoordinateSystems#So_if_you_re_lost_what_should_you_do Jeff - This SF.Net email is

Re: [Emc-users] Home Switches

Len Shelton wrote: I am trying to setup a new machine with EMC2 and Axis using home switches. Everything seems to be working fine, except that z sets itself to 8.5202 after homing. Even though I have: HOME = 0.0 HOME_OFFSET = 0.00 Where is it pulling this 8.5202? I can find no